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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract


Volume: 58 (1974)

Issue: 5. (May)

First Page: 800

Last Page: 809

Title: Reefs, Platforms, and Basins of Middle Cretaceous in Northeast Mexico

Author(s): Paul Enos (2)

Abstract:

The late Mesozoic depositional cycle in eastern Mexico began with redbed deposition in the Jurassic, included deep- and shallow-water marine carbonates (Late Jurassic to Late Cretaceous), and concluded with terrigenous detritus from the deformation of the Sierra Madre Oriental (Eocene). Rudist-fringed, shallow-water carbonate platforms attained their maximum areal extent and facies contrast with the surrounding carbonate basins in the Albian-Cenomanian. The resultant lithofacies are (1) a suite of platform carbonates; (2) dark, cherty, pelagic, basinal limestones; and (3) basin-margin carbonates consisting of platform-derived breccias and bioclastic rocks interlayered with pelagic limestones. Scale and relief of the Mexican platforms compare with those of the Capitan reef and the Bahama Banks. Steep-sided, high-relief platforms provide optimum conditions for basin-margin debris accumulations, but the necessary and sufficient combination of conditions for debris accumulation and for platform development is unsolved.

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